Initialize saveptr and please dumb compilers.

[simgrid.git] / src / xbt / memory_map.cpp

diff --git a/src/xbt/memory_map.cpp b/src/xbt/memory_map.cpp
index 3551312..73e2d8d 100644 (file)
--- a/src/xbt/memory_map.cpp
+++ b/src/xbt/memory_map.cpp
@@ -1,5 +1,4 @@
-/* Copyright (c) 2008-2015. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2008-2017. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -128,6 +127,7 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
       memreg.prot |= PROT_EXEC;
 
     /* Private (copy-on-write) or shared? */
+    memreg.flags = 0;
     if (info.shared)
       memreg.flags |= MAP_SHARED;
     else
@@ -193,12 +193,13 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
     line[read - 1] = '\0';
 
     /* Tokenize the line using spaces as delimiters and store each token in lfields array. We expect 5 tokens for 6 fields */
+    char* saveptr = nullptr; // for strtok_r()
     char* lfields[6];
-    lfields[0] = strtok(line, " ");
+    lfields[0] = strtok_r(line, " ", &saveptr);
 
     int i;
     for (i = 1; i < 6 && lfields[i - 1] != nullptr; i++) {
-      lfields[i] = std::strtok(nullptr, " ");
+      lfields[i] = strtok_r(nullptr, " ", &saveptr);
     }
 
     /* Check to see if we got the expected amount of columns */
@@ -207,7 +208,7 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
 
     /* Ok we are good enough to try to get the info we need */
     /* First get the start and the end address of the map   */
-    char *tok = std::strtok(lfields[0], "-");
+    char* tok = strtok_r(lfields[0], "-", &saveptr);
     if (tok == nullptr)
       xbt_die("Start and end address of the map are not concatenated by a hyphen (-). Recovery impossible.");
 
@@ -218,7 +219,7 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
     if (*endptr != '\0')
       xbt_abort();
 
-    tok = std::strtok(nullptr, "-");
+    tok = strtok_r(nullptr, "-", &saveptr);
     if (tok == nullptr)
       xbt_abort();
 
@@ -232,7 +233,6 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
       xbt_abort();
 
     memreg.prot = 0;
-
     for (i = 0; i < 3; i++){
       switch(lfields[1][i]){
         case 'r':
@@ -251,6 +251,7 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
     if (memreg.prot == 0)
       memreg.prot |= PROT_NONE;
 
+    memreg.flags = 0;
     if (lfields[1][3] == 'p') {
       memreg.flags |= MAP_PRIVATE;
     } else {
@@ -268,7 +269,7 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
       xbt_abort();
 
     /* Get the device major:minor bytes */
-    tok = std::strtok(lfields[3], ":");
+    tok = strtok_r(lfields[3], ":", &saveptr);
     if (tok == nullptr)
       xbt_abort();
 
@@ -277,7 +278,7 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
     if (*endptr != '\0')
       xbt_abort();
 
-    tok = std::strtok(nullptr, ":");
+    tok = strtok_r(nullptr, ":", &saveptr);
     if (tok == nullptr)
       xbt_abort();
 
@@ -339,6 +340,7 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
       memreg.prot |= PROT_EXEC;
 
     /* Private (copy-on-write) or shared? */
+    memreg.flags = 0;
     if (vmentries[i].kve_flags & KVME_FLAG_COW)
       memreg.flags |= MAP_PRIVATE;
     else
@@ -374,8 +376,7 @@ XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
      * later identifies mappings based on the permissions that are expected
      * when running the Linux kernel.
      */
-    if (vmentries[i].kve_type == KVME_TYPE_VNODE
-        && ! (vmentries[i].kve_flags & KVME_FLAG_NEEDS_COPY))
+    if (vmentries[i].kve_type == KVME_TYPE_VNODE && not(vmentries[i].kve_flags & KVME_FLAG_NEEDS_COPY))
       memreg.prot &= ~PROT_WRITE;
 
     ret.push_back(std::move(memreg));